Electrical Mayhem!

[blueta]

Ok, I got a bunch of loose wires hanging around the engine bay, and my heater/ac doesn't work. Lets start with the hvac. When I turn it on and adjust the max/vent/def/etc switch I get the typical "swoosh" sounds from the vac lines etc but NO blower. So I jumped the blower motor directly to my battery and it fired up. Next I took out the controls and checked to see if everything was connected. It looks good to me. There is 1 wire harness coming out of it with 4 wires. They go like this: b has 2 brown/white wires going into it. c has 1 green, and e has 1 brown. On the controls themselves there is a terminal for a wire in spot d but there is no wire . Also went through the fuse box but couldn't find one labled for the blower. Could it be a relay somewhere? With the power on for it there isn't any power @ the wire that connects to the blower. Where should I look next?

Now to the wires: Right from behind the blower motor area there is a set of 3 wires that are bonded together. there colors are green, tan, white. they are all cut and the white one is extended and goes into the fender. Another one is a harness that comes out of the same harness as the map sensor harness. It's a black connector with 2 wires. one black and the other black/white. Next harness is by the alternator. It's a green connector with 2 tan wires going together. There is other wires hanging around in the car that I will post tomorrow but I figured this will get you guys started. Thanks!

 

[Red Regal T]

Check the blower switch for 12V and then see if it sends 12V out when you engage it. Sounds like a bad switch. Check it out.

 

[blueta]

Ok, I may be retarted but when you say blower switch are you talking about the dash controls? Where do I check for voltage? Thanks.

 

[John Larkin]

Right from behind the blower motor area there is a set of 3 wires that are bonded together. there colors are green, tan, white. they are all cut and the white one is extended and goes into the fender.

That's your power antenna. Sounds like there was a problem and someone hacked it instead of fixing it.

Another one is a harness that comes out of the same harness as the map sensor harness. It's a black connector with 2 wires. one black and the other black/white.

No idea, I looked and I don't have one of those.

Next harness is by the alternator. It's a green connector with 2 tan wires going together.

That is your test connection for an external tach. It is supposed to be loose and unconnected. There is also a single black connector with a white wire next to it. That is a fuel pump test connection. Again, nothing needs to be hooked to that

 

[Red Regal T]

Ok, I may be retarted but when you say blower switch are you talking about the dash controls? Where do I check for voltage? Thanks.

You'll have to get behind the controls to access the switch. Use a test light to see if you have voltage there. Also, check the AC fuse in the fuse panel.....do that first.

 

[blueta]

Alright thanks guys. I'll work on the car today and report back.

 

[blueta]

junkyard switch and now it works Thanks!